© The Institution of Electrical Engineers
A travelling-wave light-intensity modulator is described which uses two natural crystals of ZnS. This prototype needs a peak microwave pulse of 2 kW for 45% modulation, and has an overall bandwidth of 15% at 9.75 GHz.
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J. Ley
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Light modulation using natural crystals of zinc sulphide.
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http://iet.metastore.ingenta.com/content/journals/10.1049/el_19680103
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